A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5965-00-177-2932
NSN 6110-01-032-7570
NSN 5905-01-216-9475
NSN 5990-01-013-4569
NSN 6240-00-627-9007
NSN 6105-00-200-7391
NSN 4140-01-568-9762
NSN 5910-01-239-8512
NSN 5920-00-524-0001
NSN 5905-01-199-4329
NSN 5999-01-535-3300
NSN 5965-00-661-0469